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Dr. Yl Wang <br /> Director of ZymaX Forensics Isotope Laboratory <br /> Environmental Forensics Solutions from DPRA <br /> 600 S.Andreasen Dr., Suite B <br /> Escondido, CA 92029 <br /> Tel: 760.781.3338 ext 43 <br /> Fax: 760.781.3339 <br /> Cell: 609.721.2843 <br /> Email: yi.wang@zymaxusa.com <br /> REPORT OF ISOTOPE ANALYSIS <br /> Report Date: August 19th, 2010 <br /> Samples for 613C (%. PDB), 837CI (9h3 SMOC) and 813 (°h3 SMOW) ratios of dissolved chlorinated solvents <br /> ZymaX ID Client Sample ID 613C 613C 617C 613C 837CI 831CI 8D 8D <br /> VC cDCE TCE PCE TCE PCE cDCE TCE <br /> 41922-01 M-6A ND • -15.2 -23.7 ND ND <br /> 41922-02 M-6C1 ND -15.9 -22.7 ND -2.1 ND a37 143 <br /> 41922-03 M-6C2 ND -8.7 -16.2 ND a-1.9 ND 112 x121 <br /> 41922-04 M-49A ND ND -23.6 ND ND <br /> 41922-05 M-31 C1 3-40.6 -25.4 -21.2 ND 2-2.1 ND 39 x135 <br /> 41922-06 TH-10 8-38.5 -23.8 -20.6 ND ND <br /> 41922-07 M-1B ND ND -21.7 ND ND <br /> 41922-08 M-17C1 8-30.5 -14.0 -15.4 ND ND <br /> 41922-09 M-10A ND ND -25.3 ND -2.2 ND ND 135 <br /> 41922-10 EW-1 ND ND -24.4 ND a-2.2 ND ND 122 <br /> 41922-11 TB-080410 <br /> aEstimate isotope ratios at low concentrations <br /> ND:Target Component Non-Detectable <br /> 613C 6 13 C 613C 837CI 837CI SD SD <br /> Quality Control STDs cDCE TCE PCE TCE PCE cDCE TCE <br /> QC-1 -25.2 -30.5 -31.1 3.1 1.9 569 384 <br /> QC-2 -24.6 -31.2 -31.6 2.6 2.3 562 377 <br /> Mean -24.9 -30.9 -31.4 2.9 2.1 566 381 <br /> Analytical precision (1a) 0.4 0.5 0.4 0.4 0.3 5 5 <br /> ZYMAX FORENSICS ISOTOPE LABORATORY ANALYSES <br /> Gas <br /> 13C and D/H of C1 to C4; 13C of CO2; 14C of C1 and CO2; 34S of H2S; 15N and 180 of N20 gas <br /> Solvents, Oil, Extract, Fraction and Kerogen <br /> Compound-Specific 13C and D/H of MTBE, PCE, TCE, DCE, TCA, PAH, Gasoline, Oil; Bulk 13C, D/H, 34S, 15N <br /> Water <br /> D, 3H and 180;34S and 180 of dissolved sulfate; 34S of dissolved H2S; 13C, 31CI and D of chlorinated solvents <br /> 15N and 180 of dissolved Nitrate; 15N of Ammonia; 13C of dissolved CO2 and Carbonate/Bicarbonate <br /> Soil and Minerals: <br /> 13G., 180, 15N' 34S, <br /> 34S, D/H; 14C of carbonate or organics <br />